A shell script to fetch Wii U crash logs through ftpiiu plugin. Can use lftp, curl, wget to retrieve the files.

fetch-wiiu-crash-logs.sh

#!/bin/sh -e

# This script copies crash logs from a Wii U running Aroma with FTPiiU plugin.

WIIU_ADDRESS=${1:-wiiu}


# Note: choose your favorite command to do FTP downloads
function download {
    URL="$1"
    # lftp -c get "$URL"
    wget --no-verbose "$URL"
    # curl --progress-bar --remote-name "$URL"
}


TEMP_PATH=$(mktemp -d)

if [[ -z "$TEMP_PATH" ]]
then
    echo "failed to create temporary directory"
    exit 1
fi

function cleanup {      
  rm -rf "$TEMP_PATH"
  echo "Deleted temp directory ${TEMP_PATH}"
}

trap cleanup EXIT


REMOTE_SYS="storage_slc/sys"

# obtain the console serial id
(cd "$TEMP_PATH" && \
     download "ftp://${WIIU_ADDRESS}/${REMOTE_SYS}/config/sys_prod.xml")

SYS_PROD_PATH="${TEMP_PATH}/sys_prod.xml"

# To avoid depending on a XML parser, we use sed instead.
CODE_ID=$(sed -rn \
                 's|[[:space:]]*<code_id[^>]*>([[:alpha:]]+)</code_id>|\1|p' \
                 "$SYS_PROD_PATH")

SERIAL_ID=$(sed -rn \
                 's|[[:space:]]*<serial_id[^>]*>([[:digit:]]+)</serial_id>|\1|p' \
                 "$SYS_PROD_PATH")

# Download each log file individually; it's slow, but reliable.
for ((i=0; i<100; ++i))
do
    (cd "$TEMP_PATH" && \
        download "ftp://${WIIU_ADDRESS}/${REMOTE_SYS}/logs/${i}.log")
done


# dump logs into <SERIAL>/<DATETIME>
SERIAL="${CODE_ID}${SERIAL_ID}"
DATETIME=$(date "+%F_%H-%M-%S")
DEST_PATH="${SERIAL}/${DATETIME}"
mkdir -v -p "$DEST_PATH"


echo "Copying logs to $DEST_PATH"

# rename all log files to match their timestamps (first line in the log)
for f in $(ls --sort=time --time=birth $TEMP_PATH/*.log)
do
    FILE_TIME=$(head -n 1 < "$f")
    FILE_NAME="${FILE_TIME//:/-}"
    FILE_NAME="${FILE_TIME// /_}"
    cat "$f" >> "${DEST_PATH}/${FILE_NAME}.log"
done


# finishing touch: use mac2unix if available
if command -v mac2unix >/dev/null 2>&1
then
    mac2unix --keepdate --force --quiet -- "$DEST_PATH/"/*.log
fi

exit 0